Initial implementation of WebUI generator (WUG) toolkit.

components/wug/generator/web_ui_view.py

Index: components/wug/generator/web_ui_view.py
diff --git a/components/wug/generator/web_ui_view.py b/components/wug/generator/web_ui_view.py
new file mode 100644
index 0000000000000000000000000000000000000000..186ff83dd120a7117a5f51af9bced4d76c64b5bc
--- /dev/null
+++ b/components/wug/generator/web_ui_view.py
@@ -0,0 +1,208 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import datetime
+import json
+import os
+import os.path
+import util
+import html_view
+
+H_FILE_TEMPLATE = \
+"""// Copyright %(year)d The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// NOTE: this file is generated from "%(source)s". Do not modify directly.
+
+#ifndef %(include_guard)s
+#define %(include_guard)s
+
+#include "base/macros.h"
+#include "components/wug/web_ui_view.h"
+#include "%(export_h_include_path)s"
+
+namespace %(namespace)s {
+
+class %(export_macro)s %(class_name)s : public ::wug::WebUIView {
+ public:
+  %(class_name)s(content::WebUI* web_ui);
+  %(class_name)s(content::WebUI* web_ui, const std::string& id);
+ protected:

[Nikita (slow), 2015/02/26 14:18:20]

nit: insert empty line.

[dzhioev (left Google), 2015/03/02 11:02:31]

Done.

+  void AddLocalizedValues(::login::LocalizedValuesBuilder* builder) override;
+  void AddResources(ResourcesMap* resources_map) override;
+  void CreateAndAddChildren() override;
+  ::wug::ViewModel* CreateViewModel() override;
+  std::string GetType() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(%(class_name)s);
+};
+
+}  // namespace %(namespace)s
+
+#endif  // %(include_guard)s
+"""
+
+CC_FILE_TEMPLATE = \
+"""// Copyright %(year)d The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// NOTE: this file is generated from "%(source)s". Do not modify directly.
+
+#include "%(header_path)s"
+
+#include "content/public/browser/web_ui_data_source.h"
+#include "content/public/browser/web_contents.h"
+#include "components/login/localized_values_builder.h"
+#include "grit/components_strings.h"
+%(includes)s
+
+namespace {
+
+const char kHTMLDoc[] = "%(html_doc)s";
+const char kJSDoc[] = "%(js_doc)s";
+
+}  // namespace
+
+namespace %(namespace)s {
+
+%(class_name)s::%(class_name)s(content::WebUI* web_ui)
+    : wug::WebUIView(web_ui, "WUG_ROOT") {
+}
+
+%(class_name)s::%(class_name)s(content::WebUI* web_ui, const std::string& id)
+    : wug::WebUIView(web_ui, id) {
+}
+
+void %(class_name)s::AddLocalizedValues(
+    ::login::LocalizedValuesBuilder* builder) {
+%(add_localized_values_body)s
+}
+
+void %(class_name)s::AddResources(ResourcesMap* resources_map) {
+%(add_resources_body)s
+}
+
+void %(class_name)s::CreateAndAddChildren() {
+%(create_and_add_children_body)s
+}
+
+::wug::ViewModel* %(class_name)s::CreateViewModel() {
+%(create_view_model_body)s
+}
+
+std::string %(class_name)s::GetType() {
+%(get_type_body)s
+}
+
+}  // namespace %(namespace)s
+"""
+
+ADD_LOCALIZED_VALUE_TEMPLATE = \
+"""  builder->Add("%(string_id)s", %(resource_id)s);"""
+
+ADD_RESOURCE_TEMPLATE = \
+"""  (*resources_map)["%(path)s"] = scoped_refptr<base::RefCountedMemory>(
+    new base::RefCountedStaticMemory(%(const)s, arraysize(%(const)s) - 1));"""
+
+CREATE_AND_ADD_CHILD_TEMPLATE = \
+  """  AddChild(new %(child_ns)s::%(child_class)s(web_ui(), "%(child_id)s"));"""
+
+def GetCommonSubistitutions(declaration):
+  subs = {}
+  subs['year'] = datetime.date.today().year
+  subs['namespace'] = declaration.namespace
+  subs['class_name'] = declaration.webui_view_class
+  subs['source'] = declaration.path
+  return subs
+
+
+def GenHFile(declaration):
+  subs = GetCommonSubistitutions(declaration)
+  subs['include_guard'] = util.PathToIncludeGuard(
+                              declaration.webui_view_include_path)
+  subs['export_h_include_path'] = declaration.export_h_include_path
+  subs['export_macro'] = declaration.component_export_macro
+  return H_FILE_TEMPLATE % subs
+
+def GenIncludes(declaration):
+  lines = []
+  lines.append('#include "%s"' % declaration.view_model_include_path)
+  children_declarations = set(declaration.children.itervalues())
+  for child in children_declarations:
+    lines.append('#include "%s"' % child.webui_view_include_path)
+  return '\n'.join(lines)
+
+def GenAddLocalizedValuesBody(declaration):
+  lines = []
+  resource_id_prefix = "IDS_WUG_" + declaration.type.upper() + "_"
+  for id in declaration.strings:
+    resource_id = resource_id_prefix + id.upper()
+    subs = {
+      'string_id': util.ToLowerCamelCase(id),
+      'resource_id': resource_id
+    }
+    lines.append(ADD_LOCALIZED_VALUE_TEMPLATE % subs)
+  return '\n'.join(lines)
+
+def GenAddResourcesBody(declaration):
+  lines = []
+  html_path = declaration.html_view_html_include_path
+  lines.append(ADD_RESOURCE_TEMPLATE % { 'path': html_path,
+                                         'const': 'kHTMLDoc' })
+  js_path = declaration.html_view_js_include_path
+  lines.append(ADD_RESOURCE_TEMPLATE % { 'path': js_path,
+                                         'const': 'kJSDoc' })
+  return '\n'.join(lines)
+
+def GenCreateAndAddChildrenBody(children):
+  lines = []
+  for id, declaration in children.iteritems():
+    subs = {
+      'child_ns': declaration.namespace,
+      'child_class': declaration.webui_view_class,
+      'child_id': id
+    }
+    lines.append(CREATE_AND_ADD_CHILD_TEMPLATE % subs)
+  return '\n'.join(lines)
+
+def GenCreateViewModelBody(type, namespace):
+  return '    return %s::%s::Create(web_ui()->GetWebContents()->' \
+             'GetBrowserContext());' % \
+             (namespace, util.ToUpperCamelCase(type) + 'ViewModel')
+
+def EscapeStringForCLiteral(string):
+  return json.dumps(string)[1:][:-1]
+
+def GenCCFile(declaration):
+  subs = GetCommonSubistitutions(declaration)
+  subs['header_path'] = declaration.webui_view_include_path
+  subs['includes'] = GenIncludes(declaration)
+  subs['add_localized_values_body'] = \
+    GenAddLocalizedValuesBody(declaration)
+  subs['add_resources_body'] = \
+    GenAddResourcesBody(declaration)
+  subs['create_and_add_children_body'] = \
+    GenCreateAndAddChildrenBody(declaration.children)
+  subs['create_view_model_body'] = \
+    GenCreateViewModelBody(declaration.type, declaration.namespace)
+  subs['get_type_body'] = '    return "%s";' % declaration.type
+  subs['html_doc'] = EscapeStringForCLiteral(html_view.GenHTMLFile(declaration))
+  subs['js_doc'] = EscapeStringForCLiteral(html_view.GenJSFile(declaration))
+  return CC_FILE_TEMPLATE % subs
+
+def ListOutputs(declaration, destination):
+  dirname = os.path.join(destination, os.path.dirname(declaration.path))
+  h_file_path = os.path.join(dirname, declaration.webui_view_h_name)
+  cc_file_path = os.path.join(dirname, declaration.webui_view_cc_name)
+  return [h_file_path, cc_file_path]
+
+def Gen(declaration, destination):
+  h_file_path, cc_file_path = ListOutputs(declaration, destination)
+  util.CreateDirIfNotExists(os.path.dirname(h_file_path))
+  open(h_file_path, 'w').write(GenHFile(declaration))
+  open(cc_file_path, 'w').write(GenCCFile(declaration))
+